Free ductwork calculator cfm printables
Every sheet below is a free PDF you can print at home or at school. Open a sheet to see what is on it, then download it — no sign-up needed.
Printable Duct Sizing ChartRoom-by-room duct sizing worksheet with CFM, friction rate, exact round duct size, and next-inch velocity columns for quick HVAC checks.1 page · free PDF
Printable Duct Schedule ChartTrack room CFM, branch size, register size, length, fittings, and notes on one printable duct schedule sheet for ductwork planning.1 page · free PDF
Printable Ductwork Trunk Reduction WorksheetFree trunk reduction worksheet for ductwork sizing with columns for section, CFM in section, round size, rectangular size, and velocity.1 page · free PDF
Printable Duct Installation ChecklistOne-page duct installation checklist for HVAC work. Track required steps, verify parts, and use it on site or during final review.1 page · free PDF4 files · XLSX, PDF, DOCX
Get every sheet: Ductwork Design Pack
This sheet plus 3 more in one download, with the editable Excel and Word files. Excel room-by-room duct sizing workbook, a printable duct schedule, a trunk reduction worksheet and a duct installation checklist.
$3.00 USD, one-time 4 files · about $0.75 each
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